S. Sahoo

A Novel Analytical Method with Fractional Complex Transform for New Exact Solutions of Time-Fractional Fifth-Order Sawada-Kotera Equation

In the present paper, we construct analytical exact solutions of a nonlinear evolution equation in mathematical physics; namely the time-fractional fifth-order Sawada–Kotera equation by the tanh–sech method via fractional complex transform. As a result, new types of exact analytical solutions are obtained. Here the fractional derivative is described in Jumaries modified Riemann-Liouville sense.

Characterization of gelatin–agar based phase separated hydrogel, emulgel and bigel: a comparative study

The current study describes the in-depth characterization of agar–gelatin based co-hydrogels, emulgels and bigels to have an insight about the differences in the properties of the formulations. Hydrogels have been extensively studied as vehicle for controlled drug release, whereas, the concept of emulgels and bigels is relatively new. The formulations were characterized by scanning electron microscopy, FTIR spectroscopy, XRD and mechanical properties. The biocompatibility and the ability of the formulations to be used as drug delivery vehicle were also studied. The scanning electron micrographs suggested the presence of internal phases within the agar–gelatin composite matrices of co-hydrogel, emulgel and bigel. FTIR and XRD studies suggested higher crystallinity of emulgels and bigels. Electrical impedance and mechanical stability of the emulgel and the bigel was higher than the hydrogel. The prepared formulations were found to be biocompatible and suitable for drug delivery applications.

Comparison of two reliable analytical methods based on the solutions of fractional coupled Klein–Gordon–Zakharov equations in plasma physics

In this paper, homotopy perturbation transform method and modified homotopy analysis method have been applied to obtain the approximate solutions of the time fractional coupled Klein–Gordon–Zakharov equations. We consider fractional coupled Klein–Gordon–Zakharov equation with appropriate initial values using homotopy perturbation transform method and modified homotopy analysis method. Here we obtain the solution of fractional coupled Klein–Gordon–Zakharov equation, which is obtained by replacing the time derivatives with a fractional derivatives of order α ∈ (1, 2], β ∈ (1, 2]. Through error analysis and numerical simulation, we have compared approximate solutions obtained by two present methods homotopy perturbation transform method and modified homotopy analysis method. The fractional derivatives here are described in Caputo sense.

Effect of horror clips on the physiology of ANS & heart using ECG signal classification

The present study reports the effect of showing horror movie clip on the autonomic nervous system (ANS) and the physiology of the conduction pathway of the heart of the volunteers. The volunteers were in the age group of 21-23 years of age and were of multi-ethnic culture. Horror clip was used to modulate the emotional states of the volunteers. The physiology of the ANS was studied non-invasively using heart rate variability (HRV) features. The changes in the physiology of the conduction pathway were monitored using ECG features and wavelet processed ECG signals. The HRV features suggested parasympathetic dominance during post-stimulus period. The time domain features were found to be significantly different using non-linear classifiers. Automated neural network based classification suggested > 80 % classification efficiency.

Wireless transmission of alarm signals from baby incubators to neonatal nursing station

With the advancement in technology, medical industry has also evolved and reached sky-high in the current day world. The mortality rates of the premature newborn infants have been brought under control. Baby incubators play an important role in this. Even after the advancements in technology, there is a need for instrument-health caregiver (HC) interactions due to varied reasons. Unfortunately, due to the higher patient: HC ratio the workload on the HCs is very high. This paper discusses about the development of a wireless transmission of incubator indicator alarms to the neonatal nursing station for the early intervention of the HC. The developed technology will reduce the workload of the HCs.

Development of portable standalone impedance measuring device for in vitro applications

Electrical impedance measurement of the biological samples has evolved as a new field in biomedical engineering. This is due to the fact that the electrical properties of the biological samples change considerably during diseased and healthy conditions. Unfortunately, the devices available in the market are bulky and are quite costly. In this study, we report the development of a portable, standalone, multi-frequency (50 Hz-10 KHz) impedance measurement device with acceptable accuracy and resolution for in vitro impedance measurement of the cells.